Biome
What classifies a biome?
The plants, animals, temperature, soil, amount of light, and amount water
What qualifies as a desert?
cold or hot/dry, little vegetation, nocturnal animals
How are weather and climate different?
Weather is the daily fluctuation of temperature and precipitation while climate is the weather in a particular location over a long period of time
What defines a species?
A group of organisms that can interbreed and reproduce under natural conditions
What is linear vs exponential groth
Linear growth increases at a constant rate whereas exponential growth doubles
What qualifies as a grassland
large, rolling terrain, many grasses, few trees, fire
What qualifies as a rainforest?
year-round warmth, near equator, rainy & dry seasons
What two units are measured in a Climatograph
Temperature and Percipitation
What are causes of extinction?
Habitat loss & degradation, Introduction of non-native species, Over-exploitation, Pollution, Disease
The number of organisms an environment can support
Carrying capacity
What qualifies as a Tundra
cold, treeless, ground permanently frozen
What qualifies as a savannah
grassland, few trees, little rainfall, tropical climate
What type of species has a LARGE impact on its environment and other species?
Keystone Species
When the gene pool of two populations are separated and cannot be shared through reproduction, the populations may develop into a new species.
Speciation
Limiting-factors that have an increasing effect as the population increases.
Density-dependent factors
What qualifies as a deciduous forest?
Four distinct seasons, many trees, camouflage
What qualifies as an alpine biome?
mountainous, cold, small vegetation, animals have insulation
What type of species respond drastically to environmental changes and can be a good indicator of environmental health to us?
Indicator Species
Type of speciation where two populations have been separated by geographic barriers that prevent reproduction (most common)
Geographical Isolation
The addition of new individuals (birth)
Natality
What qualifies a Taiga
cold, animals hibernate, largest biome, coniferous trees
What qualifies as a chaparral biome?
hot and dry, mild winter, fire and drought is common
Competition between species is called?
Interspecific competition
What are the differences between K and R strategists
K Strategist:
live in stable environments, reproduce more slowly; fewer offspring, strong / well protected , have long life expectancy, usually large , Type 1 & 2 survivorship curve, High energy / offspring expended, High levels of parental care
R Strategists:
live in unstable environments, reproduce rapidly; ensures some offspring survive, weak / subject to predation , have short life expectancy, usually small, Type 3 survivorship curve, Low energy / offspring expended, Low levels of parental care